The pressure is increasing on Apple to revamp iOS for iPhones and iPads as competitors - from Samsung to Microsoft to BlackBerry - roll out advances, and the Apple faithful have no shortage of ideas for what iOS 7 should include.Related StoriesWe're buying smartphones and tablets, but PCs still reign supremeAndroid, iOS 6.1.3 bugs expose phones to voyeurs, data thievesCrack-proof sapphire crystal to replace
